EP 3081749 A1 20161019 - TURBINE COOLING
Title (en)
TURBINE COOLING
Title (de)
TURBINENKÜHLUNG
Title (fr)
REFROIDISSEMENT DE TURBINE
Publication
Application
Priority
GB 201506383 A 20150415
Abstract (en)
A coolant feed arrangement for delivering coolant to an axially facing surface of a rotor disc (22) which is configured for carrying a row of turbine blades (201) on its radially outer surface, the coolant delivered through a conduit (26) upstream of the rotor disc, the conduit having an outlet arranged radially inwardly of the row of turbine blades (201) and directed at the axially facing surface, the arrangement comprising two or more impediments (30,27); at least one impediment comprising a work extractor device (30) arranged in the conduit (26) to extract work from the coolant on route to a last impediment (27) arranged at or adjacent the outlet, the last impediment comprising a row of static nozzles configured for accelerating the flow of coolant circumferentially in the direction of rotation of the axially facing surface of the disc (22) whereby to match the speed and direction of rotation of the axially facing surface as the coolant is delivered to the axially facing surface.
IPC 8 full level
F01D 5/08 (2006.01)
CPC (source: EP US)
F01D 5/082 (2013.01 - EP US); F01D 25/12 (2013.01 - EP US); F01D 5/081 (2013.01 - EP US); F05D 2260/14 (2013.01 - EP US); F05D 2260/20 (2013.01 - US)
Citation (search report)
- [XA] US 2005268619 A1 20051208 - RESS ROBERT A JR [US]
- [I] US 2004112064 A1 20040617 - FRIEDL WINFRIED-HAGEN [DE], et al
- [I] GB 1531037 A 19781101 - ROLLS ROYCE
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3081749 A1 20161019; GB 201506383 D0 20150527; US 2016305248 A1 20161020
DOCDB simple family (application)
EP 16161951 A 20160323; GB 201506383 A 20150415; US 201615082416 A 20160328